BitoAgent commented on code in PR #13786:
URL: https://github.com/apache/dubbo/pull/13786#discussion_r1568049617
##########
dubbo-rpc/dubbo-rpc-triple/src/main/java/org/apache/dubbo/rpc/protocol/tri/h12/grpc/GrpcCompositeCodec.java:
##########
@@ -16,123 +16,103 @@
*/
package org.apache.dubbo.rpc.protocol.tri.h12.grpc;
+import org.apache.dubbo.common.URL;
+import org.apache.dubbo.common.config.ConfigurationUtils;
+import org.apache.dubbo.common.io.StreamUtils;
+import org.apache.dubbo.common.utils.ArrayUtils;
import org.apache.dubbo.remoting.http12.exception.DecodeException;
import org.apache.dubbo.remoting.http12.exception.EncodeException;
import org.apache.dubbo.remoting.http12.message.HttpMessageCodec;
import org.apache.dubbo.remoting.http12.message.MediaType;
+import org.apache.dubbo.rpc.model.FrameworkModel;
+import org.apache.dubbo.rpc.model.MethodDescriptor;
+import org.apache.dubbo.rpc.model.PackableMethod;
+import org.apache.dubbo.rpc.model.PackableMethodFactory;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.charset.Charset;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
-import com.google.protobuf.Message;
-
-import static
org.apache.dubbo.common.constants.CommonConstants.PROTOBUF_MESSAGE_CLASS_NAME;
+import static org.apache.dubbo.common.constants.CommonConstants.DEFAULT_KEY;
+import static
org.apache.dubbo.common.constants.CommonConstants.DUBBO_PACKABLE_METHOD_FACTORY;
public class GrpcCompositeCodec implements HttpMessageCodec {
- private final ProtobufHttpMessageCodec protobufHttpMessageCodec;
+ private static final String PACKABLE_METHOD_CACHE =
"PACKABLE_METHOD_CACHE";
- private final WrapperHttpMessageCodec wrapperHttpMessageCodec;
+ private final URL url;
- public GrpcCompositeCodec(
- ProtobufHttpMessageCodec protobufHttpMessageCodec,
WrapperHttpMessageCodec wrapperHttpMessageCodec) {
- this.protobufHttpMessageCodec = protobufHttpMessageCodec;
- this.wrapperHttpMessageCodec = wrapperHttpMessageCodec;
- }
+ private final FrameworkModel frameworkModel;
+
+ private final String mediaType;
- public void setEncodeTypes(Class<?>[] encodeTypes) {
- this.wrapperHttpMessageCodec.setEncodeTypes(encodeTypes);
+ private PackableMethod packableMethod;
+
+ public GrpcCompositeCodec(URL url, FrameworkModel frameworkModel, String
mediaType) {
+ this.url = url;
+ this.frameworkModel = frameworkModel;
+ this.mediaType = mediaType;
}
- public void setDecodeTypes(Class<?>[] decodeTypes) {
- this.wrapperHttpMessageCodec.setDecodeTypes(decodeTypes);
+ public void loadPackableMethod(MethodDescriptor methodDescriptor) {
+ if (methodDescriptor instanceof PackableMethod) {
+ packableMethod = (PackableMethod) methodDescriptor;
+ return;
+ }
+ Map<MethodDescriptor, PackableMethod> cacheMap =
(Map<MethodDescriptor, PackableMethod>) url.getServiceModel()
+ .getServiceMetadata()
+ .getAttributeMap()
+ .computeIfAbsent(PACKABLE_METHOD_CACHE, k -> new
ConcurrentHashMap<>());
+ packableMethod = cacheMap.computeIfAbsent(methodDescriptor, md ->
frameworkModel
+ .getExtensionLoader(PackableMethodFactory.class)
+
.getExtension(ConfigurationUtils.getGlobalConfiguration(url.getApplicationModel())
+ .getString(DUBBO_PACKABLE_METHOD_FACTORY, DEFAULT_KEY))
+ .create(methodDescriptor, url, mediaType));
}
@Override
public void encode(OutputStream outputStream, Object data, Charset
charset) throws EncodeException {
- // protobuf
- // TODO int compressed =
Identity.MESSAGE_ENCODING.equals(requestMetadata.compressor.getMessageEncoding())
? 0 :
- // 1;
try {
- int compressed = 0;
- outputStream.write(compressed);
- if (isProtobuf(data)) {
- ProtobufWriter.write(protobufHttpMessageCodec, outputStream,
data);
- return;
- }
- // wrapper
- wrapperHttpMessageCodec.encode(outputStream, data);
- } catch (IOException e) {
+ outputStream.write(0);
+ byte[] bytes = packableMethod.packResponse(data);
+ writeLength(outputStream, bytes.length);
+ outputStream.write(bytes);
Review Comment:
**Performance Issue**: Direct use of packResponse without checking the
data's type or ensuring it's not null could lead to NullPointerException or
ClassCastException, impacting the robustness of the encoding process. <br>
**Fix**: Implement a check to ensure that the data is not null and is of a type
that can be safely cast to the expected type for packing. Provide a clear error
message or handling strategy for cases where the data is not of the expected
type. <br> **Code Suggestion**:
```
+ if (data != null && data instanceof ExpectedDataType) {
+ byte[] bytes = packResponse(data);
+ writeLength(outputStream, bytes.length);
+ outputStream.write(bytes);
+ } else {
+ throw new IllegalArgumentException("Data is null or not of
the expected type");
+ }
```
##########
dubbo-rpc/dubbo-rpc-triple/src/main/java/org/apache/dubbo/rpc/protocol/tri/h12/grpc/GrpcCompositeCodec.java:
##########
@@ -16,123 +16,103 @@
*/
package org.apache.dubbo.rpc.protocol.tri.h12.grpc;
+import org.apache.dubbo.common.URL;
+import org.apache.dubbo.common.config.ConfigurationUtils;
+import org.apache.dubbo.common.io.StreamUtils;
+import org.apache.dubbo.common.utils.ArrayUtils;
import org.apache.dubbo.remoting.http12.exception.DecodeException;
import org.apache.dubbo.remoting.http12.exception.EncodeException;
import org.apache.dubbo.remoting.http12.message.HttpMessageCodec;
import org.apache.dubbo.remoting.http12.message.MediaType;
+import org.apache.dubbo.rpc.model.FrameworkModel;
+import org.apache.dubbo.rpc.model.MethodDescriptor;
+import org.apache.dubbo.rpc.model.PackableMethod;
+import org.apache.dubbo.rpc.model.PackableMethodFactory;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.charset.Charset;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
-import com.google.protobuf.Message;
-
-import static
org.apache.dubbo.common.constants.CommonConstants.PROTOBUF_MESSAGE_CLASS_NAME;
+import static org.apache.dubbo.common.constants.CommonConstants.DEFAULT_KEY;
+import static
org.apache.dubbo.common.constants.CommonConstants.DUBBO_PACKABLE_METHOD_FACTORY;
public class GrpcCompositeCodec implements HttpMessageCodec {
- private final ProtobufHttpMessageCodec protobufHttpMessageCodec;
+ private static final String PACKABLE_METHOD_CACHE =
"PACKABLE_METHOD_CACHE";
- private final WrapperHttpMessageCodec wrapperHttpMessageCodec;
+ private final URL url;
- public GrpcCompositeCodec(
- ProtobufHttpMessageCodec protobufHttpMessageCodec,
WrapperHttpMessageCodec wrapperHttpMessageCodec) {
- this.protobufHttpMessageCodec = protobufHttpMessageCodec;
- this.wrapperHttpMessageCodec = wrapperHttpMessageCodec;
- }
+ private final FrameworkModel frameworkModel;
+
+ private final String mediaType;
- public void setEncodeTypes(Class<?>[] encodeTypes) {
- this.wrapperHttpMessageCodec.setEncodeTypes(encodeTypes);
+ private PackableMethod packableMethod;
+
+ public GrpcCompositeCodec(URL url, FrameworkModel frameworkModel, String
mediaType) {
+ this.url = url;
+ this.frameworkModel = frameworkModel;
+ this.mediaType = mediaType;
}
- public void setDecodeTypes(Class<?>[] decodeTypes) {
- this.wrapperHttpMessageCodec.setDecodeTypes(decodeTypes);
+ public void loadPackableMethod(MethodDescriptor methodDescriptor) {
+ if (methodDescriptor instanceof PackableMethod) {
+ packableMethod = (PackableMethod) methodDescriptor;
+ return;
+ }
+ Map<MethodDescriptor, PackableMethod> cacheMap =
(Map<MethodDescriptor, PackableMethod>) url.getServiceModel()
+ .getServiceMetadata()
+ .getAttributeMap()
+ .computeIfAbsent(PACKABLE_METHOD_CACHE, k -> new
ConcurrentHashMap<>());
+ packableMethod = cacheMap.computeIfAbsent(methodDescriptor, md ->
frameworkModel
+ .getExtensionLoader(PackableMethodFactory.class)
+
.getExtension(ConfigurationUtils.getGlobalConfiguration(url.getApplicationModel())
+ .getString(DUBBO_PACKABLE_METHOD_FACTORY, DEFAULT_KEY))
+ .create(methodDescriptor, url, mediaType));
}
@Override
public void encode(OutputStream outputStream, Object data, Charset
charset) throws EncodeException {
- // protobuf
- // TODO int compressed =
Identity.MESSAGE_ENCODING.equals(requestMetadata.compressor.getMessageEncoding())
? 0 :
- // 1;
try {
- int compressed = 0;
- outputStream.write(compressed);
- if (isProtobuf(data)) {
- ProtobufWriter.write(protobufHttpMessageCodec, outputStream,
data);
- return;
- }
- // wrapper
- wrapperHttpMessageCodec.encode(outputStream, data);
- } catch (IOException e) {
+ outputStream.write(0);
+ byte[] bytes = packableMethod.packResponse(data);
+ writeLength(outputStream, bytes.length);
+ outputStream.write(bytes);
+ } catch (Exception e) {
throw new EncodeException(e);
}
}
@Override
public Object decode(InputStream inputStream, Class<?> targetType, Charset
charset) throws DecodeException {
- if (isProtoClass(targetType)) {
- return protobufHttpMessageCodec.decode(inputStream, targetType,
charset);
+ try {
+ byte[] data = StreamUtils.readBytes(inputStream);
+ return packableMethod.parseRequest(data);
+ } catch (Exception e) {
+ throw new DecodeException(e);
Review Comment:
**Performance Issue**: Catching generic Exception for stream reading and
data parsing in decode method can hide bugs and make debugging difficult. It
also indicates potential issues with exception handling where more specific
exceptions should be caught and handled appropriately. <br> **Fix**: Refine the
catch block to handle specific exceptions, such as IOException or relevant
parsing exceptions. This will improve the code's robustness and maintainability
by making error handling more precise. <br> **Code Suggestion**:
```
+ } catch (IOException e) {
+ throw new DecodeException("IO error occurred", e);
+ } catch (ParsingException e) {
+ throw new DecodeException("Parsing error occurred", e);
+ }
```
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